.\"	$OpenBSD: OCSP_REQUEST_new.3,v 1.12 2022/02/19 13:09:36 jsg Exp $
.\"	OpenSSL b97fdb57 Nov 11 09:33:09 2016 +0100
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.Dd $Mdocdate: February 19 2022 $
.Dt OCSP_REQUEST_NEW 3
.Os
.Sh NAME
.Nm OCSP_REQUEST_new ,
.Nm OCSP_REQUEST_free ,
.Nm OCSP_SIGNATURE_new ,
.Nm OCSP_SIGNATURE_free ,
.Nm OCSP_REQINFO_new ,
.Nm OCSP_REQINFO_free ,
.Nm OCSP_ONEREQ_new ,
.Nm OCSP_ONEREQ_free ,
.Nm OCSP_request_add0_id ,
.Nm OCSP_request_sign ,
.Nm OCSP_request_add1_cert ,
.Nm OCSP_request_onereq_count ,
.Nm OCSP_request_onereq_get0
.Nd OCSP request functions
.Sh SYNOPSIS
.In openssl/ocsp.h
.Ft OCSP_REQUEST *
.Fn OCSP_REQUEST_new void
.Ft void
.Fn OCSP_REQUEST_free "OCSP_REQUEST *req"
.Ft OCSP_SIGNATURE *
.Fn OCSP_SIGNATURE_new void
.Ft void
.Fn OCSP_SIGNATURE_free "OCSP_SIGNATURE *signature"
.Ft OCSP_REQINFO *
.Fn OCSP_REQINFO_new void
.Ft void
.Fn OCSP_REQINFO_free "OCSP_REQINFO *reqinfo"
.Ft OCSP_ONEREQ *
.Fn OCSP_ONEREQ_new void
.Ft void
.Fn OCSP_ONEREQ_free "OCSP_ONEREQ *onereq"
.Ft OCSP_ONEREQ *
.Fo OCSP_request_add0_id
.Fa "OCSP_REQUEST *req"
.Fa "OCSP_CERTID *cid"
.Fc
.Ft int
.Fo OCSP_request_sign
.Fa "OCSP_REQUEST *req"
.Fa "X509 *signer"
.Fa "EVP_PKEY *key"
.Fa "const EVP_MD *dgst"
.Fa "STACK_OF(X509) *certs"
.Fa "unsigned long flags"
.Fc
.Ft int
.Fo OCSP_request_add1_cert
.Fa "OCSP_REQUEST *req"
.Fa "X509 *cert"
.Fc
.Ft int
.Fo OCSP_request_onereq_count
.Fa "OCSP_REQUEST *req"
.Fc
.Ft OCSP_ONEREQ *
.Fo OCSP_request_onereq_get0
.Fa "OCSP_REQUEST *req"
.Fa "int i"
.Fc
.Sh DESCRIPTION
.Fn OCSP_REQUEST_new
allocates and initializes an empty
.Vt OCSP_REQUEST
object, representing an ASN.1
.Vt OCSPRequest
structure defined in RFC 6960.
.Fn OCSP_REQUEST_free
frees
.Fa req .
.Pp
.Fn OCSP_SIGNATURE_new
allocates and initializes an empty
.Vt OCSP_SIGNATURE
object, representing an ASN.1
.Vt Signature
structure defined in RFC 6960.
Such an object is used inside
.Vt OCSP_REQUEST .
.Fn OCSP_SIGNATURE_free
frees
.Fa signature .
.Pp
.Fn OCSP_REQINFO_new
allocates and initializes an empty
.Vt OCSP_REQINFO
object, representing an ASN.1
.Vt TBSRequest
structure defined in RFC 6960.
Such an object is used inside
.Vt OCSP_REQUEST .
It asks about the validity of one or more certificates.
.Fn OCSP_REQINFO_free
frees
.Fa reqinfo .
.Pp
.Fn OCSP_ONEREQ_new
allocates and initializes an empty
.Vt OCSP_ONEREQ
object, representing an ASN.1
.Vt Request
structure defined in RFC 6960.
Such objects are used inside
.Vt OCSP_REQINFO .
Each one asks about the validity of one certificate.
.Fn OCSP_ONEREQ_free
frees
.Fa onereq .
.Pp
.Fn OCSP_request_add0_id
adds certificate ID
.Fa cid
to
.Fa req .
It returns the
.Vt OCSP_ONEREQ
object added so an application can add additional extensions to the
request.
The
.Fa cid
parameter must not be freed up after the operation.
.Pp
.Fn OCSP_request_sign
signs OCSP request
.Fa req
using certificate
.Fa signer ,
private key
.Fa key ,
digest
.Fa dgst ,
and additional certificates
.Fa certs .
If the
.Fa flags
option
.Dv OCSP_NOCERTS
is set, then no certificates will be included in the request.
.Pp
.Fn OCSP_request_add1_cert
adds certificate
.Fa cert
to request
.Fa req .
The application is responsible for freeing up
.Fa cert
after use.
.Pp
.Fn OCSP_request_onereq_count
returns the total number of
.Vt OCSP_ONEREQ
objects in
.Fa req .
.Pp
.Fn OCSP_request_onereq_get0
returns an internal pointer to the
.Vt OCSP_ONEREQ
contained in
.Fa req
of index
.Fa i .
The index value
.Fa i
runs from 0 to
.Fn OCSP_request_onereq_count req No - 1 .
.Pp
.Fn OCSP_request_onereq_count
and
.Fn OCSP_request_onereq_get0
are mainly used by OCSP responders.
.Sh RETURN VALUES
.Fn OCSP_REQUEST_new ,
.Fn OCSP_SIGNATURE_new ,
.Fn OCSP_REQINFO_new ,
and
.Fn OCSP_ONEREQ_new
return an empty
.Vt OCSP_REQUEST ,
.Vt OCSP_SIGNATURE ,
.Vt OCSP_REQINFO ,
or
.Vt OCSP_ONEREQ
object, respectively, or
.Dv NULL
if an error occurred.
.Pp
.Fn OCSP_request_add0_id
returns the
.Vt OCSP_ONEREQ
object containing
.Fa cid
or
.Dv NULL
if an error occurred.
.Pp
.Fn OCSP_request_sign
and
.Fn OCSP_request_add1_cert
return 1 for success or 0 for failure.
.Pp
.Fn OCSP_request_onereq_count
returns the total number of
.Vt OCSP_ONEREQ
objects in
.Fa req .
.Pp
.Fn OCSP_request_onereq_get0
returns a pointer to an
.Vt OCSP_ONEREQ
object or
.Dv NULL
if the index value is out of range.
.Sh EXAMPLES
Create an
.Vt OCSP_REQUEST
object for certificate
.Fa cert
with issuer
.Fa issuer :
.Bd -literal -offset indent
OCSP_REQUEST *req;
OCSP_ID *cid;

req = OCSP_REQUEST_new();
if (req == NULL)
	/* error */
cid = OCSP_cert_to_id(EVP_sha1(), cert, issuer);
if (cid == NULL)
	/* error */

if (OCSP_REQUEST_add0_id(req, cid) == NULL)
	/* error */

 /* Do something with req, e.g. query responder */

OCSP_REQUEST_free(req);
.Ed
.Sh SEE ALSO
.Xr ACCESS_DESCRIPTION_new 3 ,
.Xr crypto 3 ,
.Xr d2i_OCSP_REQUEST 3 ,
.Xr d2i_OCSP_RESPONSE 3 ,
.Xr EVP_DigestInit 3 ,
.Xr OCSP_cert_to_id 3 ,
.Xr OCSP_CRLID_new 3 ,
.Xr OCSP_request_add1_nonce 3 ,
.Xr OCSP_resp_find_status 3 ,
.Xr OCSP_response_status 3 ,
.Xr OCSP_sendreq_new 3 ,
.Xr OCSP_SERVICELOC_new 3 ,
.Xr X509_ocspid_print 3
.Sh STANDARDS
RFC 6960: X.509 Internet Public Key Infrastructure Online Certificate
Status Protocol, section 4.1: Request Syntax
.Sh HISTORY
These functions first appeared in OpenSSL 0.9.7
and have been available since
.Ox 3.2 .
